*{
    box-sizing: border-box;
}

body{
    background-color: black;
}

.nav{
    position: relative;
    background-color: white;
    top: 0;
    width: 100%;
    height: 140px;
    &>div{
        width: 90%;
        height: 100%;
        margin: 0 auto;
        &>img{
            height: 50%;
            float: left;
        }
        &>.top{
            position: relative;
            width: 80%;
            height: 50%;
            float: right;
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            &>div{
                &:nth-child(1){
                    width: max-content;
                    height: 100%;
                    display: flex;
                    flex-direction: row;
                    align-items: center;
                    justify-content: center;
                    &>div{
                        padding: 5px;
                        margin-right: 20px;
                        font-size: 1rem;
                        &:hover{
                            cursor: pointer;
                        }
                    }
                }
            }
            &>.input{
                float: right;
                width: 35%;
                height: 50px;
                margin: 10px 0;
                position: relative;
                input{
                    width: 100%;
                    height: 100%;
                    padding: 5px 70px 5px 10px;
                    font-size: 16px;
                }

                div{
                    position: absolute;
                    right: 0;
                    top: 0;
                    height: 100%;
                    width: 60px;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    font-size: 22px;
                    border-left: 1px solid gray;
                    &:hover{
                        cursor: pointer;
                        color: #ff6700;
                    }
                }
            }
        }
        &>.bottom{
            width: 100%;
            height: 50%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid gray;
            padding: 10px;
            &>div{
                font-size: 18px;
                &:nth-child(1){
                    &::first-letter{
                        font-size: 30px;
                    }
                }
                &:nth-child(2){
                    width: max-content;
                    height: 100%;
                    display: flex;
                    align-items: center;
                    justify-content: space-around;
                    &>div{
                        padding: 5px 20px;
                        &:not(&:nth-last-child(1)){
                            border-right: 1px solid gray;
                            a{
                                color: black;
                                text-decoration: none;
                                &:hover{
                                    color: #ff6700;
                                }
                            }
                            
                        }
                        &:nth-last-child(2){
                            margin-right: 30px;
                            border-right: none !important;
                        }
                        &:nth-last-child(1){
                            background-color: #ff6700;
                            padding: 16px 60px;
                            color: white;
                            font-size: 14px;
                            &:hover{
                                cursor: pointer;
                            }
                        }
                    }
                }
            }
        }
    }
}

.content{
    width: 100%;
    .introduce{
        width: 100%;
        div{
            width: 100%;
            position: relative;
            &:nth-child(1){
                width: 100%;
                img{
                    &:nth-child(1){
                        width: 100%;
                        top: 0;
                    }
                    &:nth-child(2){
                        width: 10rem;
                    }
                }
            }
        }
    }
    .text{
        width: 100%;
        display: flex;
        padding: 20px;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        p{
            width: 500px;
            text-align: center;
            margin-bottom: 10px;
            &:nth-child(1){
                line-height: 25px;
            }
        }
    }
}